diff --git a/llvm/unittests/Bitcode/DataLayoutUpgradeTest.cpp b/llvm/unittests/Bitcode/DataLayoutUpgradeTest.cpp
index 67dccb3849f93cb..7a74a5882286f9b 100644
--- a/llvm/unittests/Bitcode/DataLayoutUpgradeTest.cpp
+++ b/llvm/unittests/Bitcode/DataLayoutUpgradeTest.cpp
@@ -92,6 +92,16 @@ TEST(DataLayoutUpgradeTest, ValidDataLayoutUpgrade) {
                 "e-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64", "mips64el"),
             "e-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64");
 
+  // Check that PowerPC64 targets add -i128:128.
+  EXPECT_EQ(UpgradeDataLayoutString("e-m:e-i64:64-n32:64", "powerpc64le-linux"),
+            "e-m:e-i64:64-i128:128-n32:64");
+  EXPECT_EQ(UpgradeDataLayoutString(
+              "E-m:e-Fn32-i64:64-n32:64", "powerpc64-linux"),
+            "E-m:e-Fn32-i64:64-i128:128-n32:64");
+  EXPECT_EQ(UpgradeDataLayoutString(
+              "E-m:a-Fi64-i64:64-n32:64", "powerpc64-ibm-aix"),
+            "E-m:a-Fi64-i64:64-i128:128-n32:64");
+
   // Check that SPIR && SPIRV targets add -G1 if it's not present.
   EXPECT_EQ(UpgradeDataLayoutString("e-p:32:32", "spir"), "e-p:32:32-G1");
   EXPECT_EQ(UpgradeDataLayoutString("e-p:32:32", "spir64"), "e-p:32:32-G1");
@@ -108,8 +118,6 @@ TEST(DataLayoutUpgradeTest, NoDataLayoutUpgrade) {
       "-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
       "-n8:16:32:64-S128",
       "x86_64-unknown-linux-gnu");
-  std::string DL2 = UpgradeDataLayoutString("e-m:e-i64:64-n32:64",
-                                            "powerpc64le-unknown-linux-gnu");
   std::string DL3 = UpgradeDataLayoutString(
       "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32",
       "aarch64--");
@@ -118,7 +126,6 @@ TEST(DataLayoutUpgradeTest, NoDataLayoutUpgrade) {
       "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-i128:128:128"
       "-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64"
       "-f80:128:128-n8:16:32:64-S128");
-  EXPECT_EQ(DL2, "e-m:e-i64:64-i128:128-n32:64");
   EXPECT_EQ(DL3, "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:"
                  "64-S128-Fn32");
 
@@ -153,6 +160,14 @@ TEST(DataLayoutUpgradeTest, NoDataLayoutUpgrade) {
   EXPECT_EQ(UpgradeDataLayoutString("G2", "spir64"), "G2");
   EXPECT_EQ(UpgradeDataLayoutString("G2", "spirv32"), "G2");
   EXPECT_EQ(UpgradeDataLayoutString("G2", "spirv64"), "G2");
+
+  // Check that PowerPC32 targets don't add -i128:128.
+  EXPECT_EQ(UpgradeDataLayoutString("e-m:e-i64:64-n32", "powerpcle-linux"),
+            "e-m:e-i64:64-n32");
+  EXPECT_EQ(UpgradeDataLayoutString("E-m:e-Fn32-i64:64-n32", "powerpc-linux"),
+            "E-m:e-Fn32-i64:64-n32");
+  EXPECT_EQ(UpgradeDataLayoutString("E-m:a-Fi64-i64:64-n32", "powerpc-aix"),
+            "E-m:a-Fi64-i64:64-n32");
 }
 
 TEST(DataLayoutUpgradeTest, EmptyDataLayout) {